chd: Check that metadata seek succeeds

Prevents an infinite loop if the offset is invalid.
rtissera · Nov 5, 2024 · 443f3b1 · 443f3b1
1 parent fe77cf8
commit 443f3b1
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/libchdr_chd.c b/src/libchdr_chd.c
@@ -3123,7 +3123,8 @@ static chd_error metadata_find_entry(chd_file *chd, uint32_t metatag, uint32_t m
 		uint32_t	count;
 
 		/* read the raw header */
-		core_fseek(chd->file, metaentry->offset, SEEK_SET);
+		if (core_fseek(chd->file, metaentry->offset, SEEK_SET) != 0)
+			break;
 		count = core_fread(chd->file, raw_meta_header, sizeof(raw_meta_header));
 		if (count != sizeof(raw_meta_header))
 			break;